3x+8=12+3x-x

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Solution for 3x+8=12+3x-x equation: 



3x+8=12+3x-x

We move all terms to the left:

3x+8-(12+3x-x)=0

We add all the numbers together, and all the variables

3x-(2x+12)+8=0

We get rid of parentheses

3x-2x-12+8=0

We add all the numbers together, and all the variables

x-4=0

We move all terms containing x to the left, all other terms to the right

x=4

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